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v = 500 ml / 1000 = 0.50 L
PEQ = PM/ Nº (OH)⁻
Peq. = 56 g/mol / 1
Peq. = 56 g/eq.
Nº eq. = masa/ Peq.
Nº eq. = 8 g/ 56 g/eq.
Nºeq. = 0.142
N = 0.142 eq. / 0.500 L
N = 0.284